Download Survey: Installed Optical Fiber Cabling Distances

Background:
The objective and the process below were developed by the
HSSG Cabling Survey Ad Hoc.
Objective:
To define requirements for information gathering about installed
cabling and cabling trends in order to inform potential future HSSG
decisions on media and link distances.
Process:
Develop a survey instrument targeting network managers and BICSI
members that have detailed measured data about installed cabling,
specifically: sites with OTDR certification data bases.
Target with discrimination the sample audience with a very short
questionnaire to obtain granular data.
Survey:
Purpose
- The purpose of the survey is to characterize the lengths and type of
installed optical fiber used in commercial building
telecommunication designs.
- Survey definitions are based on TIA/ EIA- 568- A Commercial
Building Telecommunications Cable Standard and TIA/EIA-569Commercial Building Standard for Telecommunications Pathways
and Spaces.
- The survey results will allow accurate characterization of the
installed intrabuilding fiber backbone. In order to ensure the
accuracy of the lengths reported, the Installed cabling survey data
shall be taken from the as-built test documents where the cable
lengths have been recorded from the field tests measurements
(OTDR for fiber) or where the lengths had been recorded from the
cable length marks.
Survey:
Installed Optical Fiber Cabling
Distances
Scope:
Survey: Installed Optical Fiber Cabling Distances
Characterization of the lengths and types of installed optical fiber
cable used in commercial building telecommunication designs is of
critical importance to the telecommunication industry. Your survey
response will be applied to the development of Optical Fiber
Standards. Please take the time to fill in the following questionnaire.
Your participation is appreciated.
Preface
Respondent Information - Optical Fiber Cable Distance Survey
----------------------------------------------------------------------------------------Table 1: Company and Personal Profile - Please Print
----------------------------------------------------------------------------------------Your Name
_____________________________
Your Company Name
City/State/Zip
E-MAIL
_____________________________
_____________________________
_____________________________
Your Job Function ______________________________________
1 Purpose
The purpose of the survey is to characterize the lengths and type of
installed optical fiber cable used in commercial building telecommunication designs. Cable backbone distances have traditionally been
associated with application specific distance limitations e.g.,
10Base5 (500m).
2. Survey Data Reporting
The Installed cabling survey data shall be taken from the as-built test
documents where the cable lengths have been recorded from
the field tests measurements (OTDR for fiber) or where the lengths
had been recorded from the cable length marks.
3. Survey Data Format
The survey data should be submitted in a spread sheet compatible
format.
4. Survey Questionnaire –
4.1. Campus Environment:
Number of Buildings
Number of Floors:
4.2. Building Environment:
4.2.1. Interbuilding Backbone cable
For each building recorded please respond by providing the
information requested in Table 1. for each interbuilding fiber
installed.
Interbuilding Backbone cable - is the cable distance between building
equipment rooms as illustrated in Figure 1. Interbuilding Backbone
cable does not include patch cord, jumper or equipment cable.
For Hybrid Interbuilding Backbone Cable- a backbone cable with
different fiber types covered by one overall sheath- report number of
strands for each fiber type.
Table 1. Interbuilding Backbone cable
Building – Backbone
toCable
Building
Identifier:
Identifier:
Fiber Type
Number of Strands
Multimode
Single
62/125 50/125 Mode
Measured
Length
Number of
Terminated
Strands
4.2.2. Intrabuilding Backbone cable
For each building recorded please respond by providing the
information requested in Table 2. for each intrabuilding fiber
installed.
Intrabuilding Backbone cable - Backbone cable within buildings.
Intrabuilding Backbone cable distance is the cable distance
between telecommunication closets and the equipment room as
illustrated in Figure 1. Intrabuilding Backbone cable does not
include patch cord, jumper, or equipment cable.
For Hybrid Intrabuilding Backbone Cable- a backbone cable with
different fiber types covered by one overall sheath- report number of
strands for each fiber type.
Table 2. Intrabuilding Backbone cable
Building
Identifier:
Floor
Identifier:
Backbone
Cable
Identifier:
Fiber Type
Number of Strands
Multimode
Single
62/125 50/125 Mode
Measured
Length
Number of
Terminated
Strands
4.2.3. Horizontal cable
For each building floor recorded please respond with the information
requested in Table 3. for each horizontal fiber installed.
Horizontal cable - the cable between the telecommunication outlet
and the telecommunications closet. Horizontal cable does not
include patch cord, jumper, or equipment cable.
Table 3. Horizontal Fiber cable
Building
Identifier:
Floor
Identifier:
Horizontal
Cable
Identifier:
Fiber Type
Number Of Strands
Multimode
Single
62/125 50/125 Mode
Measured
Length
Number of
Terminated
strands
For each building floor recorded please respond by providing the
information requested in Table 4. for each horizontal copper cable
installed.
Table 4. Horizontal copper cable
Building
Identifier:
Floor
Identifier:
Horizontal
Cable
Identifier:
Measured
Length
4.2.5. Centralized Optical Fiber Cabling (TIA/EIA-TSB-72) - Fiber
optic cabling between the Equipment Room and the
telecommunication outlet with the use of either pull through cables ,
an interconnect, or a splice in the telecommunications closet.
For each building floor recorded please respond by providing the
information requested in Table 5. for each fiber optic cable between
the Equipment Room and the telecommunication outlet. This cabling
does not include a crossconnect, patch cord, jumper, or equipment
cable.
Table 5. Fiber Optic Cable from Equipment Room to
Telecommunication outlet.
Building
Identifier:
Floor
Identifier:
Backbone
Cable
Identifier:
Fiber Type
Number of Strands
Multimode
Single
62/125 50/125 Mode
Measured
Length
Number of
Terminated
Strands
Figure 1.
TO
TO
Horizontal Cable
T
P
TC
TO
TC
H
C
ER
TC
TC
ER
H
C
Interbuilding Backbone
H
C
Cable Reference Model key
Intrabuilding Backbone
ER = Equipment Room
TC = Telecommunication Closet
TO = Telecommunication Outlet
5. New Cabling
5.1. Please rank the difficulty in adding additional cable (1 -3 )
where 1 is the most difficult ?
[] Interbuilding building backbone
[] Intrabuiding building backbone
[] horizontal cable
5.2. Would you install higher performance multimode fiber optic
cable for 1 Gigabit Ethernet if it supported your cable
distances (y/n)?
[] Interbuilding building backbone
[] Intrabuiding building backbone
[] horizontal cable
5.3. Would you install higher performance multimode fiber optic
cable for 10 Gigabit Ethernet if it supported your cable
distances (y/n)?
[] Interbuilding building backbone
[] Intrabuiding building backbone
[] horizontal cable